Although Google currently does provide developers with a Tasks API, that API is not adequate for us to use. What that simply means is, we're unable to sync the extra rich information 2Do supports. Thus, a round-trip sync would end up corrupting the data and ruin your overall experience. We would have to infinitely dumb-down 2Do to be able to sync, which defeats the purpose.
If you'd like to up vote our request we made to Google, please kindly do so here:
https://issuetracker.google.com/issues/36761387
Article ID: 344
Created On: Fri, Oct 9, 2009 at 9:09 PM
Last Updated On: Wed, Oct 4, 2017 at 11:29 AM
Online URL: https://www.2doapp.com/kb/article/can-2do-sync-with-google-tasks.html